Telegraphic sending-machine.



H. G. MARTIN.

meca/Pme summa MACHINE.

PPUCION FILED AUG-4| |911. 1,260,008. Patented Mal'. 19, 1918.

g aucune,

HORACE G. MARTIN, F BUTHEBFURD, NEW JERSEY.

TELEGBAIPHIC SENDING-MAGHINE.

speclcatlon of Letters Patent.

Patented Mar. 19, 1918.

Application filed August 4, 1917. lcrlal No. 184,401.

To all 'whom it may concern:

Be it known that I, Houses G. MARTIN, a citizen of the United Statesresiding at Rutherford, in the county of lergen, State of New Jersey,haveinvented a new and useful Improvement in TelegrapliicSending-Machines, of which the following is a specilication. y

My invention relates to improvements in telegrnphic sending machines forsending messages, of the same general character and urpose as set forthin my prior Patents To. 842,154 dated Januar 22, 1907, and No.1,043,44ii, .ined Novem er 5, i912.

, Referring to the drawings, Figure 1 is a front elevation of oneembodiment of my improved telegraphic sending machine; Fig. 2 is a sideelevation of the same, looking toward the left in Fig. 1; Fig. 3 is asectional view on the line 3-3, Fig. 1, looking downward; Fig. 4 is asimilar sectional view of a portion of the movin parts of the ap aratus,on the line 4 5, Fig. 1, present y to be explained; Fig. 5 is an obliqueor dia onal view, artly toward the left and par y downwar Fig. 1, of themovin or operative parte of the aiparatus.

In t e preferred construction provide a metal base 1, having preferablyfour rubber feet, 2, which rest upon the table and keep the apparatus inequilibrium without the necessity of clamps` or screws. upright frame orbase 3 is secured to the base 2 by screws 4, 4, Fig. 1, thisconstruction being employed rathei` than that of casting the parts 1 and3 integrally.

A shaft 5 is secured in the upright 3, on which is placed a main lever6, capable of being moved from leftto right upon the axis 5. A ring 7,held inlace on shaft 5 by a locking screw 8, Fig. revents lever 6 fromslipping oi said sha Two studs 9 and 10 are cast on upright 3. A screw11 with lock mit 12 is inserted in lug 9, and a similar. screw 13 withlock'nut 14 is inserted in lu 10, Fig. 1, which screws a'nd nuts are ainstable stops to control the movement of the upper end of lever 6 fromleft to right. The upper end of lever 6 iis normally held against stop11 by a spring 15 near its lower end, whose tension can be varied bymeans of a screw 16 and thumb nut 17.

` right 3 by -cured to sai A shaft 18 is secured in lever 6 near itsupper end, which serves as an axis on which to move a hand lever 19 tothe lower end of which pieces of insuiating material 20 are secured by abolt 21 for operating the apparatus and in the upper end of which isinserted a screw 19. A lug 22 projects from the side of lever 6 (sideview, Fig. 2, end view, Fig. 1), against which the lower end of lever 19is normally held b a spring 23, bolt 24, and the tensioning t umb nut25. These parts are illustrated in greater detail in Fig. 4.

In the upper end of lever 6 is secured a Hat, vibrator spring 27,-Seensidewise in Fig. 2 and edgewise 'in Fig. 1. To the other end of spring27 is secured a vibrator bar 28, whose up er end normally rests againstalu 29, pre erably integral with upright 3. O n ar 28 is a weight 30which is he d on the bar by two pins 31, 'but is capable of being movedto and held in any desired position up or down said bar by means .of thethumb screw 32, Fig. 1.. To bar 28 is fastened in any convenient mannera small metal piece 33, to which 'is secured a at sprin 34, parts 33and34 being seen sidewise, ig. 2, and edgewise, Fig. 1. Spring 34carries at its upper end a contact point 35.

A binding ost (see Fig. 2)is secured without insulxiition to the rearside of upmeans of a thumb-nut 41 for attaching an electrical conductor42. A second binding post 43 is likewise secured to upright 3, butinsulated therefrom, for securing a second electrical conductor 44. Post43 and the 'manner of securing the same to and insulating it 4from part3 are shown in greater detail in Fig. 3. Said post gasses through abushing 4 5 and wash-Y ers 4 ,46, of insulatin material, preventingcontact between sai post and upright 8. A switch contact 47, Fig. 3(dotted ines, Fig. 1), is also 'inserted on post 43, and the parts areheldl together by washer 43 and nut 49. Th electrical conductor 44 issepost by thumb nut 50. At the other end of post 43 s a screw 5.1 whichmay be held in any position to which it. is moved by the thumb-nut 52,and it has inserted in Vits end a suitable contact point 53. A switch54, having an insulated handle 55, is secured to the rear side ofupright 8 by a GIS bolt 56 and spring 5'?, Figs. 1 and 2. When currentHows through the ,mechanism be- 35 said switch is open, Fig. 1, theapparatus tween conductors 42 and 44 in the manner is operative; butwhen it is closed, Figs. 2 pointed out' above.

and 3 the current flows' directly between While I prefer that my withindescribed 42 and 44 through parts 40, 3, 54, 47, 43, ap aratus stand ina vertical position, as

and the apparatus is inoperative. in icated by Figs. 1 and 2, it iscapable of 70 The operation of the apparatus in the successful operationin a horizontal posisending of telegraphic messages ma now be tion, thefront side of Fig. 1, left hand side readily understood. The parts eingin of Fig. 2, being 'in such event the upper their normal position,shown in Fig. 1, and side. Y

- assuming that the 'electrical .current will I claim: 75

flow through the conductors 42 and 44 as 1. In a telegraphic sendingmachine, the indicated by the arrows, when the operator combination of abase, a shaft secured to desires to send a message, he moves hand thebase, a main lever rotating on said shaft pieces 2O and the lower end oflever 19 to a shaft secured to said main lever, a han the left, Fig. 1,compressing sprin 23, and lever rotating on said shaft and havin theupper end of said lever to tie right means for its operation locatedbetween sai said lever revolving on axis 18. B sai shafts, a vibratormechanism attached to movement screw 19", which may be a justed saidmain lever and adapted to vibrate after to the riht or left as desired,striking the said main lever has come to rest, an electriupper en ofspring 34 moves it to the right cal contact secured to and insulatedfrom 35 and brings the contacts 35 and 53 together. said base, anelectrical contact operated by The circuit is thus closed, and thecurrent movements of said vibrator mechanism, and 'flows through themachine b, way of.con means whereby said main lever and said viductor42, upright 3,A shaft 5, ever 6, spring brator mechanism may be operatedby move- 27, bar28, part 33, sprin 34, contacts 35, ment of the handlever in one rdirection to 53, screw 51, .post 43 an conductor 44 toeiect a series of makes and'breaks between the line. This operation ofthe machine said contacts after said main lever has come sends animpulse over the line which conto rest. tnues until the o eratorreleases pressure 2. In a telegraghic sending machine, the against thehan pieces 20, whereupon combination o a ase, a shaft secured tliereo5spring 23 returns lever 19 to the position to, a main lever rotating onsaid shaft, a s own in Fig. .1, and spring 34 separates shaft secured tosaid main lever, a linnd lethe contacts 35, 53. Further movements of verrotating on said shaft and havin means hand pieces 20 to the left andthen releasfor its operation located between sai shafts, ing pressurethereon, sends more impulses an electrical contact secured to and insu-10o over the line. This Vis the operation for lated from said base, anelectrical contact sending the dashes of a telegraphic mesconnected withsaid main lever and means sage. n order to send the dots of a mes.whereby a series of makes and breaks besage, the operator moves handpieces 20 to tween said contacts may be e'ected by mo .'e-

the r ht, bringing the upper end of lever ment of said hand lever in onedirection 6 a ainst the right hand stop 13 Y by means without operatingsaid main lever.

of ug 22, which movement also throws 3. In a tele aEhic sending machine,the spring 27, bar 28 and dparts 30, 31, 32, 33, combination o a ase, ashaft secured there- 34, 35 to the right an causes them to vito, a mainlever rotating on said shaft, a brate from right to left upon s ring 27,shaft securedv to saidr main lever a hand which vibrations continuewhile tie u per lever rotating on said shaft and liavn end of lever 6 isheld against stop 13. heee means for its operation located between saivibrations cause a series of makes and breaks shafts, a vibratormechanism connected to between contact points 35 and 53, the numsaidmain lever and adapted to vibrate after ber depending upon the length oftime said main lever has come to rest, an electriwhich the operatorholds the lever 6 against ca l contact secured to and insulated fromstop 13. For sending a sin le dot he holds said base, an electricalcontact connected to the lever in` that position ut an instant, saidvibrator mechanism and means whereand for making more dots he holds itthere by a series of makes and breaks between said a. longer or shortertime according to the contacts may be etfected through the movenumberdesired. On releasing pressure ment of both said levers, and anotherseries i against hand pieces 20, spring 15 returns may be eli'ected bymovement of said hand Alever 6, and al the parts eonnected'thereleveronly. u

with to their normal positions shown in 4. In a tele a hic sendingmachine the v Fig. 1. After each operation vibrations of combination o aase, a shaft secured ,ierebar 28 and connected arts, including conto, amain levery rotating on said shaft, a tact 35, are stogpled y said barcoming shaft secured to said mam lever, a hand leagainst lug 29. themaking of dots the Aver rotating on said shaft, vibrator mechato rest,an electrical contact connected to and insulated from said base anelectrical 5 contact vibrating wlth said anism, and means whereby may becaused to effect a serles vi ra ting mechsaid contacts of makes andbreaks to produce the dots of a. message through movement of one end ofsaid hand lever in one direction, and to eil'ect another 10 series toproduce the dashes of a message through movement of the opposite end ofsaid hand lever in the same dlrecton.

HORACE G. MARTIN.

